Type in a birthday. Get a star chart and a detailed horoscope woven from several traditions at once — Western zodiac, Chinese zodiac, moon phase, and numerology — by an open-weight model. For entertainment, and priced like it should be: free.
The chart math runs entirely in your browser — your birthday never leaves this page.
BirthStar calls llama-3.3-70b-versatile — Meta's open-weight model — through Groq's free tier. A birth date is personal: with an open model there is no account, no server storing your chart, and no subscription wall between you and a bit of fun. Swap in any open model by changing one string. The whole app is one HTML file: no build step, no server.
Astrology is entertainment, not science — enjoy it that way. 🌙